#pragma once

#include <iostream>
#include <functional>
#include <vector>
#include <ctime>
#include <unistd.h>
using task_t = std::function<void()>;

void Download()
{
    std::cout << "我是一个下载任务" << "处理者：" << getpid() << std::endl;
}

void PrintLog()
{
    std::cout << "我是一个打印日志的任务"<< "处理者："  << getpid() << std::endl;
}

void PushVideoStream()
{
    std::cout << "这是一个推送视频流的任务"<< "处理者："  << getpid() << std::endl;
}


class Init
{
public:
    //任务集合
    std::vector<task_t> tasks;
    //任务码
    const static int g_download_code = 0;
    const static int g_printlog_code = 1;
    const static int g_pushvideostream_code = 2;

public:
    Init()
    {
        tasks.push_back(Download);
        tasks.push_back(PrintLog);
        tasks.push_back(PushVideoStream);

        srand(time(nullptr) ^ getpid());
    }
    bool CheckSafe(int code)
    {
        if(code >= 0 && code < tasks.size()) return true;
        else return false;
    }
    void RunTask(int code)
    {
        return tasks[code]();
    }
    int SelectTask()
    {
        return rand() % tasks.size();
    }
    std::string ToDesc(int code)
    {
        switch (code)
        {
            case g_download_code:
                return "Download";
            case g_printlog_code:
                return "PrintLog";
            case g_pushvideostream_code:
                return "PushVideoStream";
            default:
                return "Unknow";    
        }
    }
};

Init init; //定义对象

